Windmill Schedules

Schedules run scripts and flows automatically on a cron schedule.

File Naming

Schedule files use the pattern: {path}.schedule.yaml

Example: f/folder/daily_sync.schedule.yaml

Note: The path is derived from the filename, not stored in the file content.

Cron Expression Format

Windmill uses 6-field cron expressions (includes seconds):

 ┌───────────── second (0-59)
 │ ┌───────────── minute (0-59)
 │ │ ┌───────────── hour (0-23)
 │ │ │ ┌───────────── day of month (1-31)
 │ │ │ │ ┌───────────── month (1-12 or jan-dec)
 │ │ │ │ │ ┌───────────── day of week (0-6, 0=Sunday, or sun-sat)
 │ │ │ │ │ │
 * * * * * *

Common Examples:

• 0 0 0 * - Daily at midnight
• 0 0 12 * - Daily at noon
• 0 /5 * - Every 5 minutes
• 0 0 9 1-5 - Weekdays at 9 AM
• 0 0 0 1 - First day of each month

CLI Commands

Deploying local changes to the workspace can be destructive to remote state — only suggest/run a deploy when the user explicitly asks to deploy/publish/push, not when they say "run", "try", or "test". Deploy via git push or wmill sync push depending on how the repo is wired (see the Deploying section in AGENTS.wmill.md). The commands below never mutate remote state, so they're safe to run yourself — note that sync pull does overwrite local files to match the remote (use sync pull --dry-run to only preview), while schedule just lists.

# Push schedules to Windmill — only when the user explicitly asks to deploy
wmill sync push

# Pull schedules from Windmill
wmill sync pull

# List schedules
wmill schedule